Five ways Google could be vulnerable to a Justice Department probe

On Saturday, The Wall Street Journal reported that investigators from the Department of Justice will examine "Google's business practices related to its search and other businesses." It's one of the biggest threats Google has ever faced from US regulators, but so far, we don't know much about the case itself. The Journal's description was open-ended, and the nature of Google's business makes it vulnerable to antitrust challenges from a number of different directions. Google dominates the search ...